v3.26.1
Income taxes - Income tax expense reconciliation (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income taxes      
Profit (loss) before income tax ¥ (611,269) ¥ 1,254,658 ¥ (4,662,680)
Tax calculated at statutory income tax rate (152,817) 313,665 (1,165,670)
Different tax rates available to different jurisdictions 1,077,464 182,303 556,263
Preferential income tax rates applicable to subsidiaries (552,867) (305,495) (158,184)
Non-deductible expenses and non-taxable income, net 658,672 582,084 1,511,336
Super deduction for research and development expenses (719,297) (735,419) (694,930)
--Tax losses and deductible temporary differences for which no deferred income tax assets were recognized 2,679,498 1,398,123 1,219,912
Utilization and recognition of previously unrecognized deductible tax losses and temporary differences (4,683,486) (1,646,185) (1,401,352)
Withholding tax 103,852 182,053 184,352
Others (27,444) 8,741 38,022
Total income tax expense (benefit) ¥ (1,616,425) ¥ (20,130) ¥ 89,749
Income tax rate 25.00%